Home / 40,015.42-59,975.19-18,639.32

Finding the Fourth Proportional to 40,015.42, 59,975.19 and 18,639.32

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Solution

The fourth proportional to 40,015.42, 59,975.19 and 18,639.32 is: 27,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,015.42 : 59,975.19 = 18,639.32 : x
  2. Step 2: Convert to fraction form
    40,015.42/59,975.19 = 18,639.32/x
  3. Step 3: Cross multiply
    40,015.42x = 59,975.19 × 18,639.32
  4. Step 4: Simplify right side
    40,015.42x = 1,117,896,758.47
  5. Step 5: Solve for x
    x = 1,117,896,758.47/40,015.42
  6. Step 6: Final answer
    x = 27,936.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.